Be tasteful, Cunts

Vulgarity is the fucking shit, dude! I think it can be very useful for setting up character and tone, particularly with the narrator, however it needs to be specifically necessary for building character, otherwise it seems off-putting. I think its a show-don't-tell deal and vulgar language is very telling. Some of my favorite movies are heavy with the language (Guy Richie movies and In the Loop [for some reason I think Brits, Scots, and Irish swear best]). Vulgar language can be very lyrical and poetic, but can also distract, so it depends on its usage. It's like anything in writing--if it serves the purpose of furthering story, character, image, etc. then it is good.